CVE-2018-21265 describes a Same Origin Policy bypass vulnerability in Mattermost Desktop App versions prior to 4.0.0, specifically impacting the setPermissionRequestHandler for features like video, audio, and notifications. This medium-severity vulnerability (CVSS 5.3) has a network attack vector and low attack complexity, potentially leading to unauthorized information disclosure (I:L) without requiring user interaction. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 4.0.0CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_desktop:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.